BNIP1 (BCL2 interacting protein 1) is a multifunctional protein that serves as both a SNARE complex component involved in endoplasmic reticulum membrane fusion and organization, and as a regulator of apoptosis 1. The protein functions through a BH3-independent mechanism to interact with BCL2 family members including BCL2 and BCL2L1, but cannot interact with BAX 1. BNIP1 plays a critical role in autophagy regulation, particularly in the terminal stages of autolysosome formation and clearance 2. Recent studies have identified BNIP1 as a selective autophagy receptor involved in reticulophagy and mitophagy processes 3. Disease relevance includes spondylo-epiphyseal dysplasia, where homozygous hypomorphic variants cause increased autophagosomes, reduced autophagic flux, and altered lysosome positioning 2. The protein has been implicated in skeletal development, with novel variants identified in patients with skeletal dysplasia 4. Additionally, BNIP1 methylation changes have been associated with DNA damage from vinyl chloride exposure, suggesting potential roles in environmental toxicity responses 5. The gene maps to chromosome 5-34 and exists in multiple splice variants with distinct functional properties 1.